Online stock trading is a convenient and inexpensive way for consumers to invest their money. Much of the success of online stock trading has as much to do with the brokers that investors choose along with the stocks they buy. There are many factors to consider when choosing a broker for online stock trading. These include account minimums and fees, commissions, products offered, technology, promotions, customer service, and educational tools. Fortunately, there are many brokers for online stock trading offering investors a range of advantages. The best three brokers for online stock trading include Ally, Merrill Edge, and E-Trade. Read more to find out what you need to know about online stock trading.